Including filter system and high-performance 4:2 FTS filter.
4:2 FTS is one of the PFAS compounds that can travel through the environment and end up in drinking water. Hanson homeowners typically first hear about it from a utility notice, a private well test, or during a real estate inspection. You won’t be able to taste or see 4:2 FTS, but many families choose to limit exposure and feel more confident about the water they use for cooking, drinking, and bathing. Tackling it starts with filtration designed specifically for PFAS—not just systems meant for sediment, hardness, or improving taste.
Because 4:2 FTS is part of the broader PFAS group, it’s often mentioned alongside other fluorinated chemicals even when lab results single it out. Typical carbon taste filters, water softeners, and basic sediment cartridges aren’t built to remove PFAS reliably. The most dependable strategy for Hanson homes is whole-house treatment at the main water line so every tap and appliance is protected. That way you don’t have to depend only on an under-sink unit for peace of mind.
To reduce 4:2 FTS throughout a Hanson residence, the best single whole-house option is a high-capacity granular activated carbon (GAC) system sized and specified for PFAS removal. Activated carbon can adsorb many PFAS chemicals, but its success hinges on having sufficient carbon volume and adequate contact time as water passes through the tank. For whole-home reduction, a full-size tank-based or backwashing GAC unit generally outperforms small inline cartridges. Correct sizing also extends media life and keeps performance steady between service visits.
A whole-house GAC system installs on the main line and treats water for showers, kitchen taps, laundry, and every fixture in the house at once. These units are typically paired with a sediment prefilter to prevent clogging and channeling in the carbon bed. For contaminants like 4:2 FTS, regular maintenance is as important as the initial install—once carbon is exhausted it will no longer adsorb PFAS effectively. Mr. Pure Water can assess Hanson water conditions and your home’s flow needs to recommend and size the right carbon system for reliable, house‑wide protection.